Input validation error in Debian Linux - CVE-2017-6473
Published: March 4, 2017 / Updated: August 4, 2020
Vulnerability identifier: #VU33542
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-6473
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Debian
Affected software:
Debian Linux
Debian Linux
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In Wireshark 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10, there is a K12 file parser crash, triggered by a malformed capture file. This was addressed in wiretap/k12.c by validating the relationships between lengths and offsets.
How to mitigate CVE-2017-6473
Install update from vendor's website.
Sources
- http://www.debian.org/security/2017/dsa-3811
- http://www.securityfocus.com/bid/96565
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13431
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=7edc761a01cda8e1b37677f673985582330317d2
- https://www.wireshark.org/security/wnpa-sec-2017-09.html